Both products utilize resazurin as the indicator dye. alamarBlue HS Cell Viability Reagent undergoes a purification process that removes any residual resorufin that may be present from the standard manufacturing process for resazurin. This purification results in a product that has very low background. alamarBlue HS Cell Viability Reagent may be used on samples with as few as 20 cells/well, compared to a minimum of 50 cells/well for the original alamarBlue Cell Viability Reagent.
Note: Minimum cell number/well is also dependent upon reducing activity of the cell type. Results may vary.
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